Stability of Polymer Solar Cells

Mikkel Jørgensen, Kion Norrman, Suren Gevorgyan, Thomas Tromholt, Birgitta Andreasen, Frederik C Krebs

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Organic photovoltaics (OPVs) evolve in an exponential manner in the two key areas of efficiency and stability. The power conversion efficiency (PCE) has in the last decade been increased by almost a factor of ten approaching 10%. A main concern has been the stability that was previously measured in minutes, but can now, in favorable circumstances, exceed many thousands of hours. This astonishing achievement is the subject of this article, which reviews the developments in stability/degradation of OPVs in the last five years. This progress has been gained by several developments, such as inverted device structures of the bulk heterojunction geometry device, which allows for more stable metal electrodes, the choice of more photostable active materials, the introduction of interfacial layers, and roll‐to‐roll fabrication, which promises fast and cheap production methods while creating its own challenges in terms of stability.
Original languageEnglish
JournalAdvanced Materials
Volume24
Issue number5
Pages (from-to)580-612
ISSN0935-9648
DOIs
Publication statusPublished - 2012

Bibliographical note

This work has been supported the Danish Strategic Research Council (2104-07-0022), EUDP (j. nr. 64009-0050) and the Danish National Research Foundation. Partial financial support was also received from the European Commission as part of the Framework 7 ICT 2009 collaborative project HIFLEX (Grant No. 248678). From the EU-Indian framework of the “Largecells” project that received funding from the European Commission’s Seventh Framework Programme (FP7/2007-2013. Grant No. 261936) and from PV-ERA-NET (project acronym POLYSTAR).

Keywords

  • Degradation
  • Organic solar cells
  • Polymer solar cells
  • Stability

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